{"id":"UBUNTU-CVE-2018-12027","details":"An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process that reports that it listens on a certain Unix domain socket, if any of the parent directories of said socket are writable by a normal user that is not the application's user, then that non-application user can swap that directory with something else, resulting in traffic being redirected to a non-application user's process through an alternative Unix domain socket.","modified":"2025-07-16T08:13:45.017047Z","published":"2018-06-17T20:29:00Z","withdrawn":"2025-07-18T16:44:37Z","upstream":["CVE-2018-12027"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-12027"},{"type":"REPORT","url":"https://blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixes/"},{"type":"REPORT","url":"https://blog.phusion.nl/passenger-5-3-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-12027"}],"affected":[{"package":{"name":"passenger","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/passenger@6.0.10-3build1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.10-3build1"}]}],"versions":["5.0.30-1.2","6.0.10-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-passenger","binary_version":"6.0.10-3build1"},{"binary_name":"libapache2-mod-passenger-dbgsym","binary_version":"6.0.10-3build1"},{"binary_name":"passenger","binary_version":"6.0.10-3build1"},{"binary_name":"passenger-dbgsym","binary_version":"6.0.10-3build1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12027.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}